Utility brush



A. HAMBURGER 3,046,587

UTILITY BRUSH July 31, 1962 Filed Jan. 30, 1961 INVENTOR ALVIN HAMBURGER BY W M ATTORNEYS.

United States Patent Of ce 3,046,587 UTILITY BRUSH Alvin Hamburger, 3275 E. Wood Valley Road, Atlanta, Ga. Filed Jan. 30, 1961, Ser. No. 85,668 1 Claim. (@l. 15111) This invention relates to improvements in utility brushes of the type employed for sweeping, scrubbing and general cleaning of floors, baseboards, walls, etc.

It is one object of the invention to provide an improved utility brush adapted to clean two or more adjacent perpendicular surfaces in a single operation.

It is another object of the invention to provide an improved utility brush adapted not only to perform brushing and/or scrubbing operations, but to also perform scraping and abrasive scouring operations.

In the achievement of the foregoing, and other objects, a utility brush embodying the invention includes a brush head in which a plurality of groups of bristles are mounted and so located that the various groups of bristles project from the brush to locate the outer ends of the bristles in three mutually perpendicular planes. The brush head is of a triangular shaped block-like construction and the bristles are so oriented that regardless of whether the head is disposed in a horizontal or a vertical position, two brushing surfaces are available for simultaneously cleaning at least two adjacent perpendicular surfaces such as a floor and adjacent baseboard or the corners of a room. Preferably, the shape of the head is that of a right isosceles triangle with bristles mounted upon the bottom and equal side surfaces of the head. A retractable and adjustable scraper blade is mounted upon the longer side or hypotenuse of the head for use in scraping accumulated deposits of wax or the like, while one or more brushing surfaces of the brush may be employed as a steel wool pad holder.

Other objects and features of the invention will become apparent by reference to the following specification and to the drawings.

In the drawings:

FIG. 1 is a perspective View, With the handle broken away, of a utility brush embodying the invention;

FIG. 2 is a top plan view of the brush of FIG. 1;

FIG. 3 is a side elevational view of the brush of FIG. 1;

FIG. 4 is a bottom plan view of the brush of FIG. 1; and

FIG. 5 is a rear w'ew of the brush of FIG. 1.

A brush embodying the invention includes a brush head ill, which may be constructed of wood, plastic or other suitable materials, which, as best seen in FIGS. 2 and 4 is of the general shape of a right isosceles triangle. The brush head is bored as at 12 (FIG. 4) for the reception of a brush handle 14 which is secured in position within bore 12 by any conventional means. Preferably, the bottom 16 of head It is flat While side surfaces 18, 20 and 22 are perpendicular to bottom surface 16. Slide surfaces 18 and 20 of head extend in perpendicular relationship to each other and the adjacent ends of surfaces 18 and 2d are connected to each other by a convexly culved side surface 24.

A first group of brush bristles are mounted in head It? to project downwardly from bottom surface 16 to locate the outer ends of bristles 26 in a plane which extends parallel to plane of bottom surface 16. Preferably, as shown in FIG. 4, bristles 26 are disposed in a plurality of rows which extend across bottom surface 16 in generally parallel relationship to the hypotenuse side 22 of head 10.

A second group of bristles 28 is mounted in head I 3,046,587 Patented July 31, 1962 10 to project outwardly from side surface 18 to locate the outer ends of bristles 28 in a plane parallel to the plane of side surface 18 and also perpendicular to that plane in which the outer ends of bristles 26 lie. A third group of bristles 30 are similarly mounted in head 10 to project from side surface 20 to locate the outer ends of bristles 30 in a third plane which is perpendicular to the plane in which bristles 26 terminate and the plane in which bristles 28 terminate. A fourth group of bristles 32 project from head 10 along curved side surface 24, the outer ends of bristles 32 being trimmed to'form extensions of the planes in which the outer ends of bristles 28 and 30 are disposed.

A scraper plate 34 is mounted upon side surface 22 as by a plurality of screws 36. The openings 38 through which screws 36 project are preferably vertically elongated so that scraper plate 34 may be adjusted vertically upon rear side surface22.

The brush described above is extremely convenient for many uses. It may be used in the normal manner as a push broom or scrub brush by employing bristles 26 on a floor surface. For a more thorough cleaning, a steel wool pad may be mounted on the bottom of the brush by firmly pressing bristles 26 into the pad. As best indicated in FIG. 3, scraper plate 34 may be conveniently used to remove heavy deposits of built-up wax, chewing gum, etc. Bristles 28, 30 and 32 are extremely convenient for cleaning as by brushing or scrubbing at the intersection of a pair of perpendicular surfaces such as between floor and baseboard or at the juncture of adjacent walls.

In this connection, it will be noted that bristles 32 which project from curved surface 24 are of somewhat greater length than the adjacent groups of bristles 28 and 30. This affords a greater flexibility at the outer ends of bristles 32 which makes use of the brush somewhat more convenient when molding strips are present at the juncture of baseboard and floor since the other code of bristles 32 are able to flex much more easily than the shorter and, thus, stiffer bristles 28 and 30.

While I have described but one embodiment of my invention, it will be apparent to those skilled in the art in perpendicular relationship to each other and to said bottom surface, a convexly curved side surface on said brush head extending between and connecting the adjacent ends of said perpendicular side surfaces, and a rear side surface extending substantially at a 45 degree angle to each of said perpendicular side surfaces, a first group of brush bristles mounted in said head and projecting downwardly from said bottom surface to locate the outer ends of said first group of bristles in a first plane, a second group of brush bristles mounted in said head and projecting outwardly from one of said pair of side surfaces to locate the outer ends of said second group of bristles in a second plane parallel to said one of said side surfaces and perpendicular to said first plane, a third group of brush bristles mounted in said head and pro jecting outwardly from the other of said pair of side surfaces to locate the outer ends of said third group of bristles in a third plane parallel to said other of said side surfaces and perpendicular to said first plane and to said second plane, a fourth group of brush bristles mounted in said head and projecting outwardly from said convexly V curved side surface, the outer ends of said fourth group of brush bristlesprojecting outwardly from said curved 3 4 side surface to be located in an extension of the plane of References Cited in the file of this'patent the outer ends of the brush bristles on the adjacent side FOREIGN PATENTS surface, and an adjustable scraper plate mounted upon 10 422 Great Britain 1844 said rear side surface and projecting downwardly below Great Britain 1926 1 l 4 r J botom 619,051 France Ma 23, 1927 

